body { background: #f5f6fa; }
.card { border: none; box-shadow: 0 1px 3px rgba(0,0,0,.1); }
.card-header { font-weight: 600; }
.badge-active { background: #28a745; }
.badge-expired { background: #dc3545; }
.badge-inactive { background: #6c757d; }
.conn-card { transition: transform 0.15s; }
.conn-card:hover { transform: translateY(-2px); box-shadow: 0 4px 12px rgba(0,0,0,.15); }
.prompt-box { font-family: monospace; font-size: 0.85rem; min-height: 200px; background: #1e1e1e; color: #d4d4d4; border: none; }
.countdown { font-size: 1.5rem; font-weight: 700; }
.countdown.text-danger { animation: pulse 1s infinite; }
@keyframes pulse { 50% { opacity: 0.5; } }
.login-wrapper { max-width: 420px; margin: 80px auto; }
.stat-card .display-6 { font-weight: 700; }
.table td { vertical-align: middle; }